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Syntax Definition w-bnj15 29545
Description: Extend wff notation with the following predicate:  R is both well-founded and set-like on 
A. (New usage is discouraged.)
Ref Expression
cA  class  A
cR  class  R
Ref Expression
w-bnj15  wff  R  FrSe  A

See definition df-bnj15 29546 for more information.

Colors of variables: wff setvar class
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